Analysts at Wunderlich initiated coverage on Sonus Networks, Inc. (NASDAQ: SONS) with a Buy rating. The target price for Sonus Networks is set to $5. Sonus Networks' shares closed at $3.98 on Friday.

JMP Securities initiated coverage on shares of Halyard Health, Inc. (NYSE: HYH) with a Outperform rating. The target price for Halyard Health is set to $50. Halyard Health's shares closed at $41.71 on Friday.

Analysts at Wunderlich initiated coverage on Mavenir Systems, Inc. (NYSE: MVNR) with a Buy rating. The target price for Mavenir Systems is set to $18. Mavenir Systems' shares closed at $13.24 on Friday.

Analysts at Morgan Stanley initiated coverage on shares of CDK Global, Inc. (NASDAQ: CDK) with a Equalweight rating. The target price for CDK Global is set to $42. CDK Global's shares closed at $41.29 on Friday.